"Shalltear Bloodfallen is a character from the Japanese manga series ""Overlord (WN)"" written by Kugane Maruyama. She is one of the main characters in the series, and her name appears multiple times in the story.

Shalltear Bloodfallen is a vampire who serves as a member of the Great Tomb of Nazarick. She is the guardian of the first floor of the tomb, and her job is to protect the other guardians and the tomb itself. Shalltear has long, white hair and red eyes. She is also known for her pale skin, which gives her a haunting appearance.

Despite her role as a guardian, Shalltear is also one of the strongest characters in the series. She has an incredibly powerful magic called ""Blood Magic,"" which allows her to manipulate blood. This magic gives her control over both her own blood and that of her opponents. Additionally, Shalltear is also skilled in martial arts, making her a formidable opponent in close combat.

Shalltear's personality is both complex and dynamic. On one hand, she is very loyal to her master, Ainz Ooal Gown, and will stop at nothing to serve him. On the other hand, she is also very proud and can be quick to anger. This is especially true when her pride as a guardian is challenged, or when she feels that her worth is being questioned.

Throughout the series, Shalltear plays a key role in the development of the story. She helps to protect Nazarick from outside threats and battles other powerful characters in intense battles. She also serves as a foil to other characters, such as the protagonist Ainz, providing a unique perspective on their actions and motivations.

In conclusion, Shalltear Bloodfallen is a fascinating character in the ""Overlord (WN)"" series. Her role as a guardian, her powerful magic, and her complex personality make her a memorable part of the story. Fans of the series will no doubt continue to be intrigued by her actions and motivations as the series progresses."